Question 1

Which of the following statements about the general properties of the main group metals is not correct?

Accepted Answer

A) Metallic character increases down a group. 
B) Metallic character decreases left to right across a period. 
C) The majority of main group metal oxides are acidic. 
D) Main group metals tend to form cations (lose electrons)in their reactions. 
E) Main group metal reactivity tends to increase down a group. 
A) Metallic character increases down a group. 
B) Metallic character decreases left to right across a period. 
C) The majority of main group metal oxides are acidic. 
D) Main group metals tend to form cations (lose electrons)in their reactions. 
E) Main group metal reactivity tends to increase down a group.

Question 2

Which alkali metal is capable of forming a stable nitride?

Accepted Answer

A) Cs 
B) Na 
C) Rb 
D) K 
E) Li 
A) Cs 
B) Na 
C) Rb 
D) K 
E) Li

Question 3

Which of the following is not a property of metals?

Accepted Answer

A) ductile 
B) heat conductor 
C) malleable 
D) luminous 
E) electrical conductor 
A) ductile 
B) heat conductor 
C) malleable 
D) luminous 
E) electrical conductor

Question 4

The process of using superheated water to melt underground deposits of sulfur and force them to the surface is called

Accepted Answer

A) the Claus process. 
B) the Frasch process. 
C) the Dow process. 
D) the steam-reforming process. 
E) the contact process. 
A) the Claus process. 
B) the Frasch process. 
C) the Dow process. 
D) the steam-reforming process. 
E) the contact process.

Question 5

Which of the following elements is least likely to form a stable oxide?

Accepted Answer

A) Fe 
B) Ca 
C) S8 
D) P4 
E) He 
A) Fe 
B) Ca 
C) S8 
D) P4 
E) He

Question 6

The process by which free sulfur is obtained by the partial burning of hydrogen sulfide is called

Accepted Answer

A) the Frasch process. 
B) the Dow process. 
C) the Claus process. 
D) the Ostwald process. 
E) the contact process. 
A) the Frasch process. 
B) the Dow process. 
C) the Claus process. 
D) the Ostwald process. 
E) the contact process.

Question 7

Aluminum is obtained from a Al2O3-Na3AlF6 mixture by

Accepted Answer

A) reduction with hydrogen. 
B) reduction with carbon monoxide. 
C) flotation. 
D) reduction with carbon. 
E) electrolysis. 
A) reduction with hydrogen. 
B) reduction with carbon monoxide. 
C) flotation. 
D) reduction with carbon. 
E) electrolysis.

Question 8

Which of the following is not a reaction used in the Solvay process?

Accepted Answer

A) 2NaCl(aq)+ 2H2O(l)→ H2(g)+ Cl2(g)+ 2NaOH(aq) 
B) CaCO3(s)→ CaO(s)+ CO2(g) 
C) NH3(g)+ H2O(l)+ CO2(g)+ NaCl(aq)→ NaHCO3(s)+ NH4Cl(aq) 
D) 2NaHCO3(s)→ Na2CO3(s)+ CO2(g)+ H2O(g) 
E) CaO(s)+ 2NH4Cl(aq)→ 2NH3(g)+ CaCl2(aq)+ H2O(l) 
A) 2NaCl(aq)+ 2H2O(l)→ H2(g)+ Cl2(g)+ 2NaOH(aq) 
B) CaCO3(s)→ CaO(s)+ CO2(g) 
C) NH3(g)+ H2O(l)+ CO2(g)+ NaCl(aq)→ NaHCO3(s)+ NH4Cl(aq) 
D) 2NaHCO3(s)→ Na2CO3(s)+ CO2(g)+ H2O(g) 
E) CaO(s)+ 2NH4Cl(aq)→ 2NH3(g)+ CaCl2(aq)+ H2O(l)

Question 9

What is the metallurgical process of roasting?

Accepted Answer

A) A heating process done in the presence of carbon to reduce a metal oxide mineral to the metal. 
B) A heating process done in the presence of carbon to reduce a metal sulfide mineral to the metal. 
C) A heating process done in the presence of air to oxidize a metal mineral to the metal oxide. 
D) A heating process done in the presence of air to convert a metal sulfide mineral to the metal oxide mineral. 
E) A heating process done in the presence of air to reduce a metal oxide mineral to the metal. 
A) A heating process done in the presence of carbon to reduce a metal oxide mineral to the metal. 
B) A heating process done in the presence of carbon to reduce a metal sulfide mineral to the metal. 
C) A heating process done in the presence of air to oxidize a metal mineral to the metal oxide. 
D) A heating process done in the presence of air to convert a metal sulfide mineral to the metal oxide mineral. 
E) A heating process done in the presence of air to reduce a metal oxide mineral to the metal.

Question 10

Each isolated sodium atom has the electron configuration _____,or [Ne]3s1.

Accepted Answer

A) ​1s22s22p63s1 
B) ​1s22s22p43s1 
C) ​1s22s22p63s2 
D) ​1s22s22p63s23p2 
A) ​1s22s22p63s1 
B) ​1s22s22p43s1 
C) ​1s22s22p63s2 
D) ​1s22s22p63s23p2

Question 11

Which of the following statements about sulfur is incorrect?

Accepted Answer

A) The complete combustion of sulfur produces sulfur trioxide as the major product. 
B) In the Frasch process,underground deposits of sulfur are melted and forced to the surface under pressure. 
C) In the first step of the contact process,sulfur trioxide is produced from sulfur dioxide and oxygen using a vanadium catalyst. 
D) Sulfur dioxide produced from the combustion of fossil fuels has been implicated in respiratory ailments. 
E) In the Claus process,free sulfur is obtained by the partial burning of hydrogen sulfide. 
A) The complete combustion of sulfur produces sulfur trioxide as the major product. 
B) In the Frasch process,underground deposits of sulfur are melted and forced to the surface under pressure. 
C) In the first step of the contact process,sulfur trioxide is produced from sulfur dioxide and oxygen using a vanadium catalyst. 
D) Sulfur dioxide produced from the combustion of fossil fuels has been implicated in respiratory ailments. 
E) In the Claus process,free sulfur is obtained by the partial burning of hydrogen sulfide.

Question 12

Which of the following hydroxides has amphoteric character?

Accepted Answer

A) Al(OH)3 
B) CsOH 
C) Ba(OH)2 
D) KOH 
E) B(OH)3 
A) Al(OH)3 
B) CsOH 
C) Ba(OH)2 
D) KOH 
E) B(OH)3

Question 13

What small molecule is the eliminated as part of a condensation reaction?

Accepted Answer

A) H2O 
B) CO2 
C) O2 
D) H2 
E) HCl 
A) H2O 
B) CO2 
C) O2 
D) H2 
E) HCl

Question 14

Which of the following alkali metals has the highest melting point?

Accepted Answer

A) Li 
B) Na 
C) Rb 
D) Cs 
E) K 
A) Li 
B) Na 
C) Rb 
D) Cs 
E) K

Question 15

Which of the following statements is true?

Accepted Answer

A) The Solvay process is used to produce lead from galena ore. 
B) The Solvay process is used to produce magnesium from seawater. 
C) The Solvay process is used to produce sodium carbonate from sodium chloride and limestone. 
D) The Solvay process is used to separate aluminum oxide from bauxite ore. 
E) The Solvay process is used to produce aluminum metal from the electrolysis of aluminum oxide in cryolite. 
A) The Solvay process is used to produce lead from galena ore. 
B) The Solvay process is used to produce magnesium from seawater. 
C) The Solvay process is used to produce sodium carbonate from sodium chloride and limestone. 
D) The Solvay process is used to separate aluminum oxide from bauxite ore. 
E) The Solvay process is used to produce aluminum metal from the electrolysis of aluminum oxide in cryolite.

Question 16

Which of the following is not an example of "fixing" nitrogen?

Accepted Answer

A) Scientists combine dinitrogen and hydrogen gases to form ammonia. 
B) Bacteria convert dinitrogen from the atmosphere into ammonium ion and nitrate ion containing compounds. 
C) Denitrifying bacteria decompose organic compounds into dinitrogen gas. 
D) When magnesium combusts in air,some magnesium also reacts with dinitrogen to produce magnesium nitride. 
E) Lightning strikes in the atmosphere produce nitrogen monoxide from dinitrogen and dioxygen gases. 
A) Scientists combine dinitrogen and hydrogen gases to form ammonia. 
B) Bacteria convert dinitrogen from the atmosphere into ammonium ion and nitrate ion containing compounds. 
C) Denitrifying bacteria decompose organic compounds into dinitrogen gas. 
D) When magnesium combusts in air,some magnesium also reacts with dinitrogen to produce magnesium nitride. 
E) Lightning strikes in the atmosphere produce nitrogen monoxide from dinitrogen and dioxygen gases.

Question 17

Which of the following exhibits the greatest metallic character?

Accepted Answer

A) Ge 
B) Ga 
C) Br 
D) As 
E) All are equally metallic. 
A) Ge 
B) Ga 
C) Br 
D) As 
E) All are equally metallic.

Question 18

Which of the following statements concerning chlorine and its compounds is false?

Accepted Answer

A) At high temperatures,perchloric acid decomposes explosively. 
B) Chlorine is a weaker oxidizing agent than either bromine or iodine. 
C) Common bleach is a solution of sodium hypochlorite. 
D) Hydrogen chloride gas is commercially prepared by heating sodium chloride with concentrated sulfuric acid. 
E) In aqueous solution,chlorine disproportionates in basic solution to form chloride and hypochlorite. 
A) At high temperatures,perchloric acid decomposes explosively. 
B) Chlorine is a weaker oxidizing agent than either bromine or iodine. 
C) Common bleach is a solution of sodium hypochlorite. 
D) Hydrogen chloride gas is commercially prepared by heating sodium chloride with concentrated sulfuric acid. 
E) In aqueous solution,chlorine disproportionates in basic solution to form chloride and hypochlorite.

Question 19

Which of the following statements concerning magnesium is false?

Accepted Answer

A) Magnesium ion is the third most abundant dissolved ion in the oceans. 
B) Magnesium reacts with oxygen to produce magnesium oxide. 
C) Magnesium has a low density compared to most metals. 
D) Magnesium is the least reactive alkaline earth metal. 
E) Magnesium is used as a reducing agent in the production of zirconium. 
A) Magnesium ion is the third most abundant dissolved ion in the oceans. 
B) Magnesium reacts with oxygen to produce magnesium oxide. 
C) Magnesium has a low density compared to most metals. 
D) Magnesium is the least reactive alkaline earth metal. 
E) Magnesium is used as a reducing agent in the production of zirconium.

Question 20

Which of the following statements about sodium is false?

Accepted Answer

A) Sodium reacts with oxygen to produce sodium peroxide. 
B) Sodium ions are a significant component of seawater. 
C) Sodium reacts with water to produce sodium hydride and oxygen gas. 
D) Sodium metal is produced by electrolysis of sodium chloride. 
E) Sodium metal is a strong reducing agent. 
A) Sodium reacts with oxygen to produce sodium peroxide. 
B) Sodium ions are a significant component of seawater. 
C) Sodium reacts with water to produce sodium hydride and oxygen gas. 
D) Sodium metal is produced by electrolysis of sodium chloride. 
E) Sodium metal is a strong reducing agent.

Exam 21: Chemistry of the Main-Group Metals

Which of the following statements about the general properties of the main group metals is not correct?

Which alkali metal is capable of forming a stable nitride?

Which of the following is not a property of metals?

The process of using superheated water to melt underground deposits of sulfur and force them to the surface is called

Which of the following elements is least likely to form a stable oxide?

The process by which free sulfur is obtained by the partial burning of hydrogen sulfide is called

Aluminum is obtained from a Al2O3-Na3AlF6 mixture by

Which of the following is not a reaction used in the Solvay process?

What is the metallurgical process of roasting?

Each isolated sodium atom has the electron configuration _____,or [Ne]3s1.

Which of the following statements about sulfur is incorrect?

Which of the following hydroxides has amphoteric character?

What small molecule is the eliminated as part of a condensation reaction?

Which of the following alkali metals has the highest melting point?

Which of the following statements is true?

Which of the following is not an example of "fixing" nitrogen?

Which of the following exhibits the greatest metallic character?

Which of the following statements concerning chlorine and its compounds is false?

Which of the following statements concerning magnesium is false?

Which of the following statements about sodium is false?

Chemistry and Measurement

Atoms, molecules, and Ions

Calculations With Chemical Formulas and Equations

Chemical Reactions

The Gaseous State

Thermochemistry

Quantum Theory of the Atom

Electron Configurations and Periodicity

Ionic and Covalent Bonding

Molecular Geometry and Chemical Bonding Theory

States of Matter; Liquids and Solids

Solutions

Rates of Reaction

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Thermodynamics and Equilibrium

Electrochemistry

Nuclear Chemistry

The Transition Elements and Coordination Compounds

Organic Chemistry

Polymer Materials: Synthetic and Biological

Filters

Aluminum is obtained from a Al₂O₃-Na₃AlF₆ mixture by

Each isolated sodium atom has the electron configuration _____,or [Ne]3s¹.